Design of a low return loss Planar Inverted F Antenna (PIFA) for 4G & WLAN applications loaded with Metamaterial lens

In this paper, an antenna for 4G and WLAN devices is proposed. The proposed antenna is designed using Planar Inverted F Antenna (PIFA) structure. The antenna uses Rogers Duroid 5880 as a dielectric substrate and metallic ground plane. The dimensions of the top patch are 18.5 mm × 18.5 mm and thus making it a low profile antenna. The designed antenna covers WLAN (2.4-2.48 GHz) & 4G LTE (2300-2400 MHz & 2500-2690 MHz) communication standards. The overall volume occupied by the proposed antenna is 44mm × 20mm × 3.8mm. Metamaterial superstate is also analyzed which enhances the gain and bandwidth of the proposed antenna significantly. The antenna is designed and simulated using High Structure Frequency Simulator (HFSS).